Get tips on filling cracks in a concrete driveway. A flowable urethane or silicon caulk will fill the cracks in the driveway and prevent excess moisture from getting in.
LESLIE: Going over to Maryland now, where Karen has got a driveway  that’s cracking up. Tell us about it.
KAREN: Well, thank you very much for taking my call.
LESLIE: Our pleasure.
KAREN: I have some cracks in the driveway. We’ve just moved into the house not long ago and there are some cracks in the sidewalk. And I had listened to one of your shows a while back and written down what you suggested. Went to two hardware stores – Lowe’s and Home Depot – and they said they didn’t know what I was talking about.
TOM: (chuckling) OK.
KAREN: Since then, I’ve lost the …
LESLIE: The piece of paper.
KAREN: … paper with the name of the product.
TOM: Alright. How big are these cracks?
KAREN: Oh, I would say no more than maybe a quarter-inch.
TOM: OK. And it’s concrete  we’re talking about?
KAREN: We’re talking about concrete. Yes, sir.
TOM: Alright. So you can use either a flowable urethane or if you can’t find that, you can use silicone caulk. I’m sure both home centers will sell you silicone caulk.
KAREN: OK …
TOM: And that will sit in there. It’ll wear well, last about five years and it will expand and contract. And what it will do, Karen, is it will reduce the amount of water that gets into those cracks …
TOM: … and that’s really what you want to do because, as the water gets in, it freezes and it makes them worse.
KAREN: Oh, OK.
TOM: So that’s why you’re filling them up.
KAREN: OK. And what suggestion do you have where I could find – what’d you say it was? Flowable urethane?
TOM: Flowable urethane? Well, that’s another sort of hardware store/home improvement store …
LESLIE: Staple, really.
TOM: … sort of staple. I mean, it’s pretty common. But if you can’t find it, use silicone caulk. That’ll work just as well.
KAREN: OK. I thank you so very much and I think your show is absolutely fantastic.
TOM: Thank you very much. We appreciate that, Karen. Thanks so much for calling us at 888-MONEY-PIT.